Shi Dashenghua: China Petroleum University Co., Ltd. holds a total of 3.22% of the shares of the pledged company.

Shi Dasheng announced that China Stone Holdings holds 16.85 million shares, accounting for 7.24%; this time pledged 7.5 million shares, accounting for 44.51% of its holdings and 3.22% of the total share capital of the company. The pledge period is from December 16, 2025 to December 16, 2026, with China Securities Co., Ltd. as the pledge holder, used for production and operation. After this, China Stone Holdings has pledged a total of 7.5 million shares. The three shareholders holding more than 5% collectively pledged a total of 22.701 million shares, accounting for 9.76% of the total share capital of the company.